Synthesis and Characterization of Europium Based Metal Organic Framework

4th International Conference on Innovative Academic Studies ICIAS 2024, Konya, Türkiye, 12 - 13 Mart 2024, ss.281

Metal organic frameworks (MOFs), containing a single metal ion or metal cluster and

polydentate ligands are regular crystal structures with potential vacancies. They attract

attention with their extremely high surface area, large porosity, adjustable pore size and

flexible functionality. Due to their unique features, MOFs have been frequently used in

wide areas in recent years. Central metal ion, ligand structure, metal-ligand ratio, type of

solvent, pH and temperature directly affect the tunable properties of MOFs. A wide

variety of metals and polydentate ligands are used in MOF synthesis. Terephthalic acid

(TPA) is widely used as a ligand due to its rigid skeletal structure and ability to form

versatile types of coordination. Rare earth metals, are frequently preferred in MOF

syntheses because they can form compounds with high coordination numbers. MOFs,

especially those synthesized using lanthanides such as terbium and europium, stand out

due to their multiple coordination structures and high chemical stability. In this study;

the europium-based metal organic framework (Eu-TPA) was synthesized using europium

nitrate pentahydrate and TPA as an organic ligand. Its characterization was tried to be

carried out using methods such as Fourier transform infrared spectroscopy (FTIR), X-ray

diffraction (XRD), scanning electron microscopy with energy dispersive X-ray

spectroscopy (SEM-EDS) and thermogravimetric analysis (TGA).